IRS SSL certificate status

Valid — 159 days until expiry(irs.gov)

This page shows the IRS SSL certificate as served by irs.gov, read from a live TLS handshake by an independent CertPost probe and rechecked hourly: expiry, issuer, hostname coverage, the full chain, and the negotiated protocol.

Last checked 2026-09-20 07:48 UTC. CertPost is not affiliated with IRS.

Certificate details

Subjectirs.gov

IssuerEntrust OV TLS Issuing RSA CA 2

Valid from2026-08-12

Expires2027-02-26

Days remaining159

Chain validyes

Hostname matchyes

Negotiated protocolTLSv1.2

TLS versions acceptedTLSv1.2

Hostnames this certificate covers

irs.gov, www.irs.gov

Certificate chain as served

irs.govissued by Entrust OV TLS Issuing RSA CA 2 · expires 2027-02-26

Entrust OV TLS Issuing RSA CA 2issued by Sectigo Public Server Authentication Root R46 · expires 2027-12-10

Sectigo Public Server Authentication Root R46issued by USERTrust RSA Certification Authority · expires 2038-01-18

USERTrust RSA Certification Authorityself-signed (root) · expires 2038-01-18

Common questions

Is the IRS SSL certificate expired?

At the last check, the certificate irs.gov serves was within its validity period. It expires on 2027-02-26, 159 days from that check.

When does the IRS SSL certificate expire?

The certificate irs.gov is currently serving expires on 2027-02-26 (159 days from the last check). Large services rotate certificates long before that date.

Who issued the IRS SSL certificate?

The certificate was issued by Entrust OV TLS Issuing RSA CA 2.

How is this checked?

A CertPost probe opens a real TLS connection to irs.gov on port 443 and reads the certificate the server presents, the same way a browser does. The result is cached and refreshed hourly.

IRS rotates certificates without downtime. Your own domains are the ones that expire quietly — watch 3 free, no card.

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